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141.
The Concise Reference Guide to Publications and Broadcasting Media of Black America, Africa and the Caribbean (New York: Panther House Ltd. Box 3552, 1971—$15.00/ 12.50) Olav Stokke (ed.), Reporting Africa (New York: Africana Publishing Corp., 101 Fifth Ave., 1971—$9.50) Harold D. Lasswell's Propaganda Technique in World War I (reissue of 1927 edition titled Propaganda Technique in the World War). Cambridge, Mass.: MIT Press, 1971—$2.95, paper) 相似文献
142.
Using Ecological Momentary Assessment, we explored predictors of adolescents' television (TV) multitasking behaviors. We investigated whether demographic characteristics (age, gender, race/ethnicity, and maternal education) predict adolescents' likelihood of multitasking with TV. We also explored whether characteristics of the TV-multitasking moment (affect, TV genre, attention to people, and media multitasking) predict adolescents' likelihood of paying primary versus secondary attention to TV. Demographic characteristics do not predict TV multitasking. In TV-multitasking moments, primary attention to TV was more likely if adolescents experienced negative affect, watched a drama, or attended to people; it was less likely if they used computers or video games. 相似文献
143.
Knut Olav Nesse A. P. Nagalakshmi P. Marimuthu Mamta Singh 《Indian journal of clinical biochemistry : IJCB》2011,26(4):360-365
Protein hydrolysates are good nutritional supplements as their bioactive ingredients can be easily absorbed and utilized for
various metabolic activities. A fish protein hydrolysate (Amizate), prepared by a unique process of hydrolysis has the advantage
of high di/tri peptide content (<10 kDa) along with essential and non essential amino acids, micronutrients and vitamins.
The effect of Amizate on malnourished children (6–8 years, a total of 438) of Grade I and II (Gomez’s classification) with
respect to immunoglobulins, CD4/CD8 ratios and hemoglobin was examined. Measurement of these parameters during the user trial
study (at the beginning and the end after 4 months) indicated that the levels of the immunological parameters were not significantly
altered by the Amizate treatment. The values of immunoglobulins and CD4/CD8 ratios of malnourished children (India) are in
the normal range and are in accordance with the reported values of various ethnic groups. 相似文献
144.
Matthew B. Byrne Lisa Trump Amit V. Desai Lawrence B. Schook H. Rex Gaskins Paul J. A. Kenis 《Biomicrofluidics》2014,8(4)
Diffusion of
autocrine and paracrine signaling molecules allows cells to
communicate in the absence of physical contact. This chemical-based, long-range
communication serves crucial roles in tissue function, activation of the immune system,
and other physiological functions. Despite its importance, few in vitro
methods to study cell-cell signaling through paracrine factors are available today. Here,
we report the design and validation of a microfluidic platform that enables (i) soluble molecule-cell and/or
(ii) cell-cell paracrine signaling. In the microfluidic platform, multiple cell
populations can be introduced into parallel channels. The channels are separated by arrays
of posts allowing diffusion of paracrine molecules between cell
populations. A computational analysis was performed to aid design of the microfluidic platform.
Specifically, it revealed that channel spacing affects both spatial and temporal
distribution of signaling molecules, while the initial concentration of the signaling
molecule mainly affects the concentration of the signaling molecules excreted by the
cells. To validate the microfluidic platform, a model system composed of the
signaling molecule lipopolysaccharide, mouse macrophages, and engineered human embryonic
kidney
cells was introduced into the platform. Upon diffusion from the first
channel to the second channel, lipopolysaccharide activates the macrophages which begin to
produce TNF-α. The TNF-α diffuses from the second channel to the third channel to
stimulate the kidney
cells, which express green fluorescent protein (GFP) in response. By
increasing the initial lipopolysaccharide concentration an increase in fluorescent
response was recorded, demonstrating the ability to quantify intercellular communication
between 3D cellular constructs using the microfluidic platform reported
here. Overall, these studies provide a detailed analysis on how concentration of the
initial signaling molecules, spatiotemporal dynamics, and inter-channel spacing affect
intercellular
communication. 相似文献
145.
Olav Hovdelien 《International Journal of Inclusive Education》2013,17(11):1107-1119
In Norway, 9 out of 10 children between the ages of one and five participate in an educational formation programme which, despite around half of the kindergartens being privately owned, is regulated by a common law and relatively detailed regulations describing what the content of kindergartens should be. Norwegian kindergartens therefore represent a central institution for integration and transfer of values and morals in today's multicultural Norwegian society. The relatively new situation of multicultural diversity is challenging earlier cultural hegemonies where Christian heritage and tradition combined with a strong social democratic movement were important components. The issue discussed in this paper is how this cultural diversity is dealt with in the early childhood education documents, with emphasis on understanding where the limits of multiculturalism are set. I argue, in dialogue with three standpoints of multiculturalism, that while Norwegian early childhood education embraces cultural diversity, it is unclear about the limits to its political implications. 相似文献
146.
Rex R. Robison 《Medical reference services quarterly》2013,32(3):339-347
ABSTRACT The National Institutes of Health (NIH) funds biomedical research and conducts its own research. One way the NIH Library supports this work is by providing librarians with biomedical training and encouraging them to become embedded with researchers and administrators. Some of these “informationists” have degrees in scientific or health fields, and all engage in ongoing training, mostly through coursework at local institutions and at NIH itself. This article elaborates on the training of NIH informationists. Past research has indicated that patrons welcome librarians with biomedical training, which may in turn lead to greater communication between librarians and researchers. 相似文献
147.
Kymberly Goodson Marlayna Christensen Sarah Elliott Abigail Lowery 《Journal of Interlibrary Loan, Document Delivery & Electronic Reserve》2013,23(2):117-129
In 2004, the Social Sciences and Humanities Library at the University of California–San Diego implemented restaurant-style pagers to notify waiting patrons that the reserve collection materials they needed were available. The authors describe the university libraries’ process for implementing the pagers and the success staff has had with pagers over the past four years, list other libraries that use pagers, suggest other library uses for pagers, and offer guidance to institutions that might consider this service enhancement. 相似文献
148.
Clare Christensen 《Studies in Science Education》2013,49(2):205-223
In this paper I consider a role for risk understanding in school science education. Grounds for this role are described in terms of current sociological analyses of the contemporary world as a ‘risk society’ and recent public understanding of science studies where science and risk are concerns commonly linked within the wider community. These concerns connect with support amongst many science educators for the goal of science education for citizenship. From this perspective scientific literacy for decision making on contemporary socioscientific issues is central. I argue that in such decision making, risk understanding has an important role to play. I examine some of the challenges its inclusion in school science presents to science teachers, review previous writing about risk in the science education literature and consider how knowledge about risk might be addressed in school science. I also outline the varying conceptions of risk and suggest some future research directions that would support the inclusion of risk in classroom discussions of socioscientific issues. 相似文献
149.
Dominick Shattuck Kristen A. Corbell Jason W. Osbourne Gerald Knezek Rhonda Christensen Lisa Leonor Grable 《学校用计算机》2013,30(4):291-315
In this article the authors present a confirmatory factor analysis of the Teachers’ Attitudes Toward Computers (TAC) and the Teachers’ Attitudes Toward Information Technology (TAT) scales by Christensen and Knezek (1996, 1998) using large samples from three states. The TAC was reduced from 98 items and nine factors to 35 items and eight factors, while maintaining superior psychometric properties. The TAT was reduced from 50 items and five factors to 20 items measuring five factors, similarly maintaining excellent psychometric properties. The authors also developed a combined short form of both instruments using 42 items to measure 11 factors for use in situations where parsimony is critical. 相似文献
150.
This article discusses the extent to which former special needs students – now in their late 20s – achieve economic independence. The emphasis is on class placement – that is, whether being educated in special or regular classes in upper secondary school contributes to favourable occupational outcomes. The empirical evidence is based on interviews of 373 young Norwegians who were surveyed regularly for more than 10 years. The analyses reveal that nearly half of the young adults found jobs that made them economically independent. Students schooled in regular classes attained vocational or academic competence and obtained a driving licence to a much greater degree than did students educated in special classes. In turn this increased the chances of earning a living. That is the indirect effect of class placement. The direct positive effect of schooling in regular classes was observed among people with rather low functional abilities and among those who did not succeed in attaining competence or obtaining a driving licence. 相似文献